Tennis legend and My Stepsisters Natural Tits (2016) XXX Moviemama-to-be Serena Williams just celebrated her pregnancy with a star-studded '50s-themed baby shower at Nick's 50s Diner in West Palm Beach in Florida.

Williams' super cute bash was attended by some of her celeb pals, like Kelly Rowland, Ciara, La La Anthony, Eva Longoria, and of course, her equally talented sister, Venus Williams.

Party goers pulled all the stops with spot-on colorful costumes and even the famously huge '50s hair bows. They even posed in front of a cherry red pickup truck that was parked outside the old school diner.

SEE ALSO: Serena Williams sheds light on the black woman's experience during Black Women's Equal Pay Day

The older Williams sister and soon-to-be auntie burst out big polka dots to celebrate the occasion.

Williams' famous friends took to social media to share all the cool photos from the "Baby O's Diner" party with the hashtag #ShakeRattleandRoll2017 and um, also to give us major FOMO.

Mashable Top Stories Stay connected with the hottest stories of the day and the latest entertainment news. Sign up for Mashable's Top Stories newsletter By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

This comes months after the 23-time Gland Slam champion accidentally announced her pregnancy in April via a Snapchat of her baby bump bearing the caption: "20 weeks."

However, Williams and her fiancé and co-founder of Reddit, Alexis Ohanian, have revealed that they don't know the gender of the baby and have decided to keep it that way until the birth.

Williams confirmed this through a note she shared on Instagram a couple of months ago:

View this post on Instagram

Based on how the baby shower went, we can only imagine how amazing this baby's 1st birthday party theme will be.

Congrats, Serena and Alexis!

Featured Video For You
Andy Murray casually reminds reporter that female tennis players do exist

Topics Celebrities